Hydrogen Dew Point Control in Renewable Energy Systems Using Thermoelectric Coolers

N. V. Dale; K. W. Harrison; T. Han; M. D. Mann; H. Salehfar; A. M. Dhirde

doi:10.1109/PES.2008.4596026

Hydrogen Dew Point Control in Renewable Energy Systems Using Thermoelectric Coolers

N. V. Dale, K. W. Harrison, T. Han, M. D. Mann, H. Salehfar, A. M. Dhirde

Chemistry and Nanoscience

Research output: Contribution to conference › Paper › peer-review

Abstract

This paper describes a system, utilizing the Peltier effect, to reduce and control the dew point of hydrogen gas by water condensation and desublimation using thermoelectric coolers and water cooled heat sinks. The design is compared to a two-tube desiccant-drying system used in some commercial proton exchange membrane electrolyzer systems. The desiccant system in the water electrolyzer consumes roughly 0.2 kg per day of hydrogen product gas (corresponding to 3.4 kWh per kg of hydrogen based on the higher heating value) to maintain the two desiccant beds. Thermodynamic modeling was performed to determine the appropriate sizing for the thermoelectric coolers and water-cooled heat sinks for a 1 Nm³ hr^-1 hydrogen flow rate to obtain a theoretical dew point of -35 °C. The potential benefits and energy consumed by the thermoelectric approach (3.05 kWh per kg of hydrogen) is compared to the hydrogen loss of the desiccant system. The thermoelectric cooler-based system has the ability to control the dew point to match the variable flow rate of hydrogen in a renewable electrolysis system.

Original language	American English
Number of pages	6
DOIs	https://doi.org/10.1109/PES.2008.4596026 https://doi.org/10.1109/PES.2008.4596026
State	Published - 2008
Event	IEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES - Pittsburgh, PA, United States Duration: 20 Jul 2008 → 24 Jul 2008

Conference

Conference	IEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES
Country/Territory	United States
City	Pittsburgh, PA
Period	20/07/08 → 24/07/08

NREL Publication Number

NREL/CP-581-44138

Keywords

Dew point
Hydrogen
PEM electrolysis
Thermoelectric coolers

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Dale, N. V., Harrison, K. W., Han, T., Mann, M. D., Salehfar, H., & Dhirde, A. M. (2008). Hydrogen Dew Point Control in Renewable Energy Systems Using Thermoelectric Coolers. Paper presented at IEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES, Pittsburgh, PA, United States. https://doi.org/10.1109/PES.2008.4596026, https://doi.org/10.1109/PES.2008.4596026

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Dale, NV, Harrison, KW, Han, T, Mann, MD, Salehfar, H & Dhirde, AM 2008, 'Hydrogen Dew Point Control in Renewable Energy Systems Using Thermoelectric Coolers', Paper presented at IEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES, Pittsburgh, PA, United States, 20/07/08 - 24/07/08. https://doi.org/10.1109/PES.2008.4596026, https://doi.org/10.1109/PES.2008.4596026

Hydrogen Dew Point Control in Renewable Energy Systems Using Thermoelectric Coolers. / Dale, N. V.; Harrison, K. W.; Han, T. et al.
2008. Paper presented at IEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES, Pittsburgh, PA, United States.

Research output: Contribution to conference › Paper › peer-review

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AU - Dhirde, A. M.

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N2 - This paper describes a system, utilizing the Peltier effect, to reduce and control the dew point of hydrogen gas by water condensation and desublimation using thermoelectric coolers and water cooled heat sinks. The design is compared to a two-tube desiccant-drying system used in some commercial proton exchange membrane electrolyzer systems. The desiccant system in the water electrolyzer consumes roughly 0.2 kg per day of hydrogen product gas (corresponding to 3.4 kWh per kg of hydrogen based on the higher heating value) to maintain the two desiccant beds. Thermodynamic modeling was performed to determine the appropriate sizing for the thermoelectric coolers and water-cooled heat sinks for a 1 Nm3 hr-1 hydrogen flow rate to obtain a theoretical dew point of -35 °C. The potential benefits and energy consumed by the thermoelectric approach (3.05 kWh per kg of hydrogen) is compared to the hydrogen loss of the desiccant system. The thermoelectric cooler-based system has the ability to control the dew point to match the variable flow rate of hydrogen in a renewable electrolysis system.

AB - This paper describes a system, utilizing the Peltier effect, to reduce and control the dew point of hydrogen gas by water condensation and desublimation using thermoelectric coolers and water cooled heat sinks. The design is compared to a two-tube desiccant-drying system used in some commercial proton exchange membrane electrolyzer systems. The desiccant system in the water electrolyzer consumes roughly 0.2 kg per day of hydrogen product gas (corresponding to 3.4 kWh per kg of hydrogen based on the higher heating value) to maintain the two desiccant beds. Thermodynamic modeling was performed to determine the appropriate sizing for the thermoelectric coolers and water-cooled heat sinks for a 1 Nm3 hr-1 hydrogen flow rate to obtain a theoretical dew point of -35 °C. The potential benefits and energy consumed by the thermoelectric approach (3.05 kWh per kg of hydrogen) is compared to the hydrogen loss of the desiccant system. The thermoelectric cooler-based system has the ability to control the dew point to match the variable flow rate of hydrogen in a renewable electrolysis system.

KW - Dew point

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Dale NV, Harrison KW, Han T, Mann MD, Salehfar H, Dhirde AM. Hydrogen Dew Point Control in Renewable Energy Systems Using Thermoelectric Coolers. 2008. Paper presented at IEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES, Pittsburgh, PA, United States. doi: 10.1109/PES.2008.4596026, 10.1109/PES.2008.4596026

Hydrogen Dew Point Control in Renewable Energy Systems Using Thermoelectric Coolers

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